Mac's Battery Status Notification

README.md

1. Add battery.monitor.plist to ~/Library/LaunchAgents
2. Modify ~/Library/LaunchAgents to point to path of BatteryStatusNotification.scpt

battery.monitor.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>battery-status-monitor.job</string>
    <key>ProgramArguments</key>
    <array>
        <string>/usr/bin/osascript</string>
        <string>BatteryStatusNotification.scpt</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
</dict>
</plist>

BatteryStatusNotification.scpt

repeat
	set chargeState to do shell script "pmset -g batt | awk '{printf \"%s %s\\n\", $4,$5;exit}'"
	set percentLeft to do shell script "pmset -g batt | egrep -ow '([0-9]{1,3})[%]' | egrep -ow '[0-9]{1,3}'"

	considering numeric strings
		if chargeState contains "Battery Power" and percentLeft ≤ 20 then
			display notification "Time to plug me in 🔌" with title "Battery Charge Boundary" sound name "Ping"
		#else if chargeState contains "AC Power" and percentLeft ≥ 80 then
		#	display notification "Time to unplug me 🔋" with title "Battery Charge Boundary" sound name "Ping"
		end if
	end considering

	delay 300
end repeat